1196459640 has 256 divisors, whose sum is σ = 4233600000. Its totient is φ = 299718144.

The previous prime is 1196459623. The next prime is 1196459647. The reversal of 1196459640 is 469546911.

It is a happy number.

1196459640 is a `hidden beast` number, since 1 + 19 + 6 + 4 + 596 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1196459647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4083334 + ... + 4083626.

It is an arithmetic number, because the mean of its divisors is an integer number (16537500).

Almost surely, 2^1196459640 is an apocalyptic number.

1196459640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1196459640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2116800000).

1196459640 is an abundant number, since it is smaller than the sum of its proper divisors (3037140360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1196459640 is a wasteful number, since it uses less digits than its factorization.

1196459640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1196459640 is about 34589.8777101047. The cubic root of 1196459640 is about 1061.6124858951.

The spelling of 1196459640 in words is "one billion, one hundred ninety-six million, four hundred fifty-nine thousand, six hundred forty".